Title:
多層プラスターボードの製造方法および装置
Document Type and Number:
Japanese Patent JP4004554
Kind Code:
B2
Abstract:
The apparatus includes a two-stage mixer comprising a first high shear mixer 12 and a record low shear mixer 14. Plaster slurry is formed in the first mixer; a portion 38 is laid on a first facing sheet 32, a portion 40 B is laid on a second facing sheet 36, and the remainder goes to the second mixer. In the second mixer, foam is added and the formed slurry is laid on the unfoamed slurry on the first facing sheet. The unfoamed slurry on the second facing sheet is brought onto the foamed slurry to form the product.
More Like This:
Inventors:
John Ainsley
John James Bloodshaw
Arthur George Terry Ward
John James Bloodshaw
Arthur George Terry Ward
Application Number:
JP18294594A
Publication Date:
November 07, 2007
Filing Date:
July 11, 1994
Export Citation:
Assignee:
BP Industry Public Limited Company
International Classes:
B28B1/30; B28B1/16; B32B5/18; B28B1/50; B28B5/02; B28B17/02; B28B19/00; B28C5/08; B28C5/12; B32B13/00; C04B28/14
Domestic Patent References:
| JP6143240A |
Foreign References:
| WO1993003899A1 | ||||
| US2985219 | ||||
| US4279673 |
Attorney, Agent or Firm:
Nobuaki Kazehaya